The Eagle SWS1248-16/3 Wall Shelf is a Snap-n-Slide unit constructed of 16/304 stainless steel, with a 180 lb weight capacity. The stainless steel wall brackets mount to wall studs, so no wall backing is required. It has a 1-1/2" rolled front edge with a 1-1/2" upturn on the rear and ends. This unit measures 12" x 48".